Home / 121,723.60-182,585.40-71,827.60

Finding the Fourth Proportional to 121,723.60, 182,585.40 and 71,827.60

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Solution

The fourth proportional to 121,723.60, 182,585.40 and 71,827.60 is: 107,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,723.60 : 182,585.40 = 71,827.60 : x
  2. Step 2: Convert to fraction form
    121,723.60/182,585.40 = 71,827.60/x
  3. Step 3: Cross multiply
    121,723.60x = 182,585.40 × 71,827.60
  4. Step 4: Simplify right side
    121,723.60x = 13,114,671,077.04
  5. Step 5: Solve for x
    x = 13,114,671,077.04/121,723.60
  6. Step 6: Final answer
    x = 107,741.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.